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논문 기본 정보

자료유형
학술저널
저자정보
Nakamae Toshio (Hiroshima University) Kamei Naosuke (Hiroshima University) Fujimoto Yoshinori (JA Hiroshima General Hospital Hiroshima Japan) Yamada Kiyotaka (JA Hiroshima General Hospital Hiroshima Japan) Tamura Takayuki (Hiroshima University Hospital) Tsuchikawa Yuji (Hiroshima University Hiroshima Japan) Morisako Taiki (Hiroshima University Hiroshima Japan) Harada Takahiro (Hiroshima University Hiroshima Japan) Maruyama Toshiaki (Hiroshima University Hiroshima Japan) Adachi Nobuo (Hiroshima University)
저널정보
대한척추외과학회 Asian Spine Journal Asian Spine Journal Vol.16 No.2
발행연도
2022.4
수록면
254 - 260 (7page)
DOI
10.31616/asj.2020.0648

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Study Design: Cross-sectional study. Purpose: We aimed to quantitatively assess bone marrow edema (BME) on magnetic resonance imaging (MRI) for patients with degenerative lumbar diseases. Overview of Literature: BME adjacent to a sclerotic endplate of the lumbar spine, detected using T2-weighted fat-saturated MRI, is closely associated with low back pain in patients with degenerative lumbar diseases. However, currently, there no quantitative evaluation methods for BME adjacent to the vertebral endplate. Methods: Patients with degenerative lumbar diseases, whose MRIs detected BME, were enrolled. On a T2-weighted fat-saturated MRI, BME appeared as a high-intensity region adjacent to the vertebral endplate. We calculated the contrast ratios (CRs) of BME and normal bone marrow using the signal intensities of BME, normal bone marrow, and the spinal cord. On computed tomography, we calculated Hounsfield unit (HU) values in the same area as BME, the sclerotic endplate, and normal bone marrow to assess bone density. Results: There were 16 men and 14 women, with an average age of 73.5 years. The mean CRs of BME and normal bone marrow were ?0.015±0.056 and ?0.407±0.023, respectively. BME’s CR was significantly higher than that of normal bone marrow (p<0.01). The HU values in the same area as BME, the sclerotic endplate, and normal bone marrow were 251.9±24.6, 828.3±35.6, and 98.1±9.3, respectively; these values were significantly different from each other (p<0.01). Conclusions: The CR on MRI is a useful quantitative assessment tool for BME in patients with degenerative lumbar diseases.

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